This is not uncommon with many things like this. If you have ever looked at pesticides, particularly Herbicides as I do for work. One brand will have three different labels on the same shelf for different apps, in some cases the chemical is the same % inside, others one might have 18% vs 24 vs 50. But once you dilute it down into the final liquid, it is all at or about .5-1% final dilutions, as are the premixed ready to spray! Label and what it is for will change only!